2nd Create Schema and Model in NestJS with Mongoose

[misostack]

2nd Create Schema and Model in NestJS with Mongoose

Define Schema

import * as mongoose from 'mongoose';
export type Schema = mongoose.Schema;
export class SchemaFactory {
  static createSchema(options: any): Schema {
    return new mongoose.Schema({
      ...options,
      createdAt: { type: Date, default: Date.now },
      updatedAt: { type: Date, default: Date.now },
    });
  }
}

Create Provider to inject Model ( created from Schema )

const CompanySchema = SchemaFactory.createSchema({
  name: { type: String, required: true, maxLength: 75 },
});

const companyProvider = {
      provide: `EXAMPLE_MODEL`,
      useFactory: (connection: Connection) =>
        connection.model('Company', CompanySchema ),
      inject: ['DatabaseConnection'],
    };

export const databaseProviders = [
  {
    provide: 'DatabaseConnection',
    useFactory: (): Promise<typeof mongoose> =>
      mongoose.connect(MONGODB_URL, mongooseOptions),
  },
];


@Module({
  imports: [],
  providers: [...databaseProviders, companyProvider],
  exports: [...databaseProviders, companyProvider],
})

Usage

@Module({
  imports: [DatabaseModule],
  controllers: [HealthController],
})
export class HealthModule {}

@Controller('health')
export class HealthController {
  constructor(
    @Inject('COMPANY_MODEL')
    private companyModel: Model<Company>,
  ) {}

  @Get()
  async check() {
    await this.companyModel.create({ name: 'dasd' });
    const totalOfCompany = await this.companyModel.count();
    console.log({ totalOfCompany });

    return {totalOfCompany}
  }